GDA-5437 Switch to use org.dawb.hdf5 rather than ncsa.hdf
GDA-5437 Switch to use org.dawb.hdf5 rather than ncsa.hdf
DummyPersistentScannable - send ScannableStatus to observers on change
GDA-5445 - Added a new file called NXTomoEntryLinkCreator. Added a
workaround in makelink in NXLinkCreator. Added
testNXTomoEntryLinkCreatorin ScanToNexusTest.
MXGDA-779 add check for whether an object is large enough to draw
GDA-5445 - Added more default values and accessors; added an override
method for makelinks to make it possible to create non-links.
Merge branch '8.28' of ssh://dascgitolite@dasc-git.diamond.ac.uk/gda/gda-core.git into 8.28
prevent NPE
make visit the default experiment identifier

fixes GDA-5456
Do not use a Progress monitor to schedule the wkspaceModifyOperation as
the GUI can hang for a long time on startup. Rather schedule as a normal
job
Only re-try to execute evaluateCommand in the event of a Corba COMMs
exception. Otherwise if the command itself results in an exeception it
will be run mulitple times.
Merge remote-tracking branch 'origin/8.28'

Conflicts:
	uk.ac.gda.core/src/gda/data/scan/datawriter/NXTomoEntryLinkCreator.java